Computed Tomographic (CT) Perfusion and CT Angiography as Screening Tools for Vasospasm Following Subarachnoid Hemorrhage

This study has been completed.
Information provided by (Responsible Party):
Michelle Miller-Thomas, MD, Washington University School of Medicine Identifier:
First received: August 19, 2009
Last updated: December 8, 2014
Last verified: December 2014
Cerebral vasospasm is a devastating complication of subarachnoid hemorrhage after cerebral aneurysm rupture leading to cerebral ischemia and potentially cerebral infarction. The current gold standard diagnostic imaging study for cerebral vasospasm is catheter cerebral angiography, an invasive diagnostic procedure carrying a complication rate of 1-2% per procedure. Computed tomographic perfusion imaging (CTP) and computed tomographic angiography (CTA) are noninvasive diagnostic imaging studies frequently utilized in the evaluation of embolic and thrombotic cerebral infarct. The investigators hypothesize that CTP and CTA may be utilized as screening tools for cerebral vasospasm following aneurysmal subarachnoid hemorrhage requiring treatment and provide prognostic information.

Cerebral Vasospasm
Cerebral Aneurysm
Subarachnoid Hemorrhage

Study Type: Observational
Study Design: Observational Model: Cohort
Time Perspective: Prospective
Official Title: Computed Tomographic Perfusion and Computed Tomographic Angiography as Screening Tools for Vasospasm Following Subarachnoid Hemorrhage

Resource links provided by NLM:

Further study details as provided by Washington University School of Medicine:

Primary Outcome Measures:
  • CT perfusion parameters [ Time Frame: at time of catheter angiogram ] [ Designated as safety issue: No ]

Secondary Outcome Measures:
  • Disposition at discharge [ Time Frame: At time of hospital discharge ] [ Designated as safety issue: No ]
  • vessel narrowing by CT angiography [ Time Frame: at time of catheter angiogram ] [ Designated as safety issue: No ]

Enrollment: 4
Study Start Date: September 2009
Study Completion Date: December 2011
Primary Completion Date: December 2011 (Final data collection date for primary outcome measure)
Patients undergo CTA/CTP imaging prior to cerebral angiography


Ages Eligible for Study:   18 Years and older
Genders Eligible for Study:   Both
Accepts Healthy Volunteers:   No
Sampling Method:   Non-Probability Sample
Study Population
Patients admitted to the neurological intensive care unit with subarachnoid hemorrhage due to rupture of a cerebral aneurysm

Inclusion Criteria:

  • subarachnoid hemorrhage after aneurysm rupture

Exclusion Criteria:

  • renal insufficiency
  • pregnancy
  • contrast reaction
  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its identifier: NCT00962546

United States, Missouri
Barnes-Jewish Hospital
St. Louis, Missouri, United States, 63110
Sponsors and Collaborators
Washington University School of Medicine
Principal Investigator: Michelle Miller-Thomas, MD Washington University School of Medicine
  More Information

Responsible Party: Michelle Miller-Thomas, MD, Assistant Professor, Washington University School of Medicine Identifier: NCT00962546     History of Changes
Other Study ID Numbers: HRPO 09-0950 
Study First Received: August 19, 2009
Last Updated: December 8, 2014
Health Authority: United States: Institutional Review Board

Keywords provided by Washington University School of Medicine:
cerebral aneurysm
subarachnoid hemorrhage
cerebral vasospasm
computed tomographic perfusion
computed tomographic angiography

Additional relevant MeSH terms:
Intracranial Aneurysm
Subarachnoid Hemorrhage
Vasospasm, Intracranial
Brain Diseases
Cardiovascular Diseases
Central Nervous System Diseases
Cerebrovascular Disorders
Intracranial Arterial Diseases
Intracranial Hemorrhages
Nervous System Diseases
Pathologic Processes
Vascular Diseases processed this record on May 24, 2016